Average product of labor (APL) is total output divided by the amount of labor used to produce it: APL = Q ÷ L. The result is output per labor unit—for example, units per worker or units per labor-hour. Match the output and labor figures to the same production period, and state which labor measure you used.
How do you calculate average product of labor?
- Set the production period. Choose a day, week, month, or another interval. Use output and labor input from that same period.
- Find total output (Q). Count the full amount produced during the period, not just the extra output associated with the latest worker.
- Choose the labor measure (L). Use the number of workers for output per worker, or total labor-hours for output per hour. Keep the measure consistent with the question you are answering.
- Divide total output by labor input. Report the result with its unit, such as units per worker per week or units per labor-hour.
MIT’s Principles of Microeconomics presents average product as output divided by labor. A production schedule in the NCERT Production and Costs chapter hosted by Philoid expresses it as total product divided by the variable input: APL = TPL ÷ L.
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Example using workers
If a shop produces 240 units in one week using 8 workers, APL = 240 ÷ 8 = 30 units per worker per week. This is an arithmetic illustration, not a published statistic.
When workers put in different hours
A worker-count calculation treats each worker as one unit of labor, even if workers put in different hours. To measure output per hour instead, divide the same period’s total output by the total labor-hours worked. These are different measures, so label the denominator rather than treating them as interchangeable.
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How is average product different from marginal product?
Average product describes output per labor unit across the labor input included in the calculation. Marginal product describes the change in output associated with a change in labor. In the standard short-run setup, where other inputs are held constant, the formulas are:
| Measure | Formula | What it measures |
|---|---|---|
| Average product of labor | APL = Q ÷ L | Total output per labor unit |
| Marginal product of labor | MPL = ΔQ ÷ ΔL | Change in output per change in labor |
For example, dividing a firm’s total output by its workers gives average product; dividing the change in output by the change in workers gives marginal product. MIT’s textbook distinguishes these formulas, as does the NCERT-hosted chapter.
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What does the result tell you?
An APL of 30 units per worker means measured output averaged 30 units for each worker counted in the denominator over the specified period. It does not mean every worker produced exactly 30 units, and it does not isolate any individual worker’s contribution.
APL is an average for the selected output, time period, and labor measure. It does not, by itself, explain why output changed or establish the contribution of labor independent of other production inputs.
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How can you compare average-product figures?
Before comparing businesses, periods, or regions, check that the figures use comparable definitions. A headcount measure and an hours-based measure answer different questions; an average-product figure and a marginal-product figure are different calculations.
- Output: Are both figures counting the same kind of goods or services, using a consistent output definition?
- Period: Do both cover the same length of time?
- Labor denominator: Are both per worker or both per labor-hour?
- Productivity concept: Are both total output per labor unit, rather than one being incremental output per added labor unit?
The U.S. Bureau of Labor Statistics describes labor productivity in terms of output compared with hours worked. Its productivity concepts page therefore provides an hours-based frame; do not casually equate that measure with output divided by worker count.
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